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Vishay General Semiconductor - Diodes Division P6SMB30CAHM3_A/H
- Part No.:
- P6SMB30CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30CAHM3_A/H.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB30CAHM3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 30 V standoff voltage (VWM), 33.3 V minimum breakdown voltage (VBR), and 41.4 V maximum clamping voltage (VC) at 14.5 A peak pulse current (IPPM), designed to protect signal lines and power rails in automotive and industrial sensor interfaces against ESD and inductive switching transients.
For engineers reviewing the P6SMB30CAHM3_A/H datasheet, P6SMB30CAHM3_A/H pinout, P6SMB30CAHM3_A/H application, or P6SMB30CAHM3_A/H equivalent, this device serves as a halogen-free, AEC-Q101 qualified transient suppressor with MSL Level 1 moisture sensitivity, 600 W peak pulse power rating (10/1000 μs), and low incremental surge resistance for robust overvoltage protection in space-constrained PCB layouts.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance regardless of voltage polarity-enabling simplified layout in AC-coupled or differential signal paths. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), critical for protecting high-speed sensor outputs and CAN/LIN bus lines.
The device is rated for 150 °C maximum junction temperature and features a thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads, supporting reliable operation under repetitive surge conditions up to 0.01% duty cycle without derating below 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 24 V nominal systems. |
| VBR (Breakdown Voltage) | 33.3 V min - Voltage at which device enters avalanche conduction; guarantees activation before downstream IC damage thresholds. |
| VC (Clamping Voltage) | 41.4 V max at IPPM = 14.5 A - Peak voltage seen by protected circuit during 10/1000 μs surge; enables compatibility with 36 V-rated components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability per IEC 61000-4-5 waveform; meets Level 4 surge immunity requirements. |
| ID (Reverse Leakage) | 1.0 μA max at VWM - Minimal parasitic loading on low-power sensor bias networks and precision reference lines. |
| TJ max | 150 °C - Enables deployment in under-hood automotive environments and industrial enclosures without forced cooling. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking; terminals are matte tin-plated for J-STD-002 solderability and JESD22-B102 whisker resistance (Class 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (negative polarity) | Conducts surge current when voltage at this terminal falls ≥33.3 V below cathode; symmetrical with cathode for bidirectional operation. |
| Cathode | Transient current entry point (positive polarity) | Conducts surge current when voltage at this terminal rises ≥33.3 V above anode; identical clamping behavior to anode due to bidirectional design. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing-supports use in ADAS sensor modules and body control units. |
| Halogen-free & RoHS-compliant | Meets JEDEC J-STD-020 MSL Level 1 (peak reflow ≤260 °C) and IPC-1752 material declaration requirements for green manufacturing. |
| 600 W peak pulse power (10/1000 μs) | Withstands repeated lightning-induced surges per IEC 61000-4-5 Ed. 3, enabling single-device protection for 24 V CAN FD and LIN physical layers. |
| Low clamping ratio (VC/VBR ≈ 1.24) | Minimizes overvoltage stress on protected ICs-critical for safeguarding 3.3 V or 5 V microcontrollers interfacing with 24 V field-side sensors. |
| 100 °C/W RθJA on standard pads | Enables thermal design without heatsinking in compact modules; supports sustained operation at 5.0 W power dissipation up to 50 °C ambient. |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and Hall-effect position sensors in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector interface to shunt transients before reaching PHY layer. Use Value: Limits induced voltage to ≤41.4 V during 10/1000 μs surges, preventing latch-up or gate oxide damage in 3.3 V MCU I/O cells. |
Use Scenario: Safeguarding 4–20 mA current loop receivers and ADC front-ends in programmable logic controllers subjected to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 μA) standoff device placed across input terminals to absorb ±2 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity with <1.0 μA reverse leakage at 30 V, avoiding offset errors in precision 16-bit analog acquisition channels. |
| Telecom Power Rail Protection | Consumer Appliance Motor Control |
|
Use Scenario: Guarding 48 V PoE-powered Ethernet PHYs and DC-DC converter inputs against surge coupling from adjacent data lines. IC Role / Device Role / Timing Role: Primary clamping element in multi-stage protection scheme, coordinated with GDT and polymer PTC. Use Value: Fast <1 ns response captures initial surge edge before slower secondary protectors activate, reducing total let-through energy by >40%. |
Use Scenario: Shielding microcontroller GPIOs and gate drivers in smart washing machine motor inverters from commutation spikes generated by BLDC motors. IC Role / Device Role / Timing Role: Localized TVS mounted at motor driver IC power pins to suppress <100 ns dv/dt transients from MOSFET switching. Use Value: Clamps 600 W surges within 41.4 V envelope, preventing false triggering of overvoltage lockout and preserving PWM timing accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30CA | Same VWM (30 V), but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy surges; less suitable for automotive load dump where 600 W rating is required. | Select P6SMB30CAHM3_A/H when 600 W surge handling and AEC-Q101 qualification are mandatory. |
| SMCJ33CA | Higher VBR (36.7 V min), higher VC (53.3 V), same PPPM (600 W); larger SMC package (7.11 mm × 6.22 mm) | Higher clamping voltage may exceed safe margins for 3.3 V or 5 V logic; requires more PCB area. | Choose P6SMB30CAHM3_A/H for tighter clamping (41.4 V) and smaller SMB footprint in space-constrained modules. |
Compared with SMAJ30CA and SMCJ33CA, P6SMB30CAHM3_A/H delivers optimal balance of low clamping voltage (41.4 V), AEC-Q101 compliance, and SMB-size packaging-making it preferred for automotive sensor nodes and industrial I/O modules where board space, reliability, and precise voltage limiting are jointly critical.
Availability
P6SMB30CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, and telecom power rail protection requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for P6SMB30CAHM3_A/H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, automotive-qualified components meeting AEC-Q101 and industrial standards.
The P6SMB Series targets robust transient suppression in harsh environments-specifically engineered for automotive, industrial, and telecom applications demanding high pulse power, low clamping, and extended temperature operation.
FAQ
What is the clamping voltage of P6SMB30CAHM3_A/H at its rated peak pulse current?
The P6SMB30CAHM3_A/H has a maximum clamping voltage (VC) of 41.4 V at its rated peak pulse current (IPPM) of 14.5 A, measured under the standardized 10/1000 μs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and ensures protected circuits remain below critical overvoltage thresholds during transient events. The P6SMB30CAHM3_A/H achieves this with a low clamping ratio of approximately 1.24 (VC/VBR), reflecting efficient avalanche energy absorption.
Is P6SMB30CAHM3_A/H suitable for automotive applications?
Yes, P6SMB30CAHM3_A/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials-meeting stringent automotive reliability requirements for temperature cycling, high-temperature reverse bias, and ESD immunity. Its 150 °C maximum junction temperature, MSL Level 1 rating, and bidirectional symmetry make it appropriate for engine bay sensors, body control modules, and infotainment power supplies. The P6SMB30CAHM3_A/H is explicitly designated for automotive use via the "HM3" suffix and revision code "_A/H".
What does the "CA" suffix indicate in P6SMB30CAHM3_A/H?
The "CA" suffix in P6SMB30CAHM3_A/H denotes a bidirectional Transient Voltage Suppressor configuration-meaning the device provides symmetrical clamping for both positive and negative voltage transients without polarity dependence. Unlike unidirectional variants (e.g., P6SMB30A), the CA version has no cathode band marking and exhibits identical VBR, VC, and IPPM characteristics in either direction. This simplifies PCB layout for AC-coupled lines such as CAN, LIN, or differential sensor outputs.
How does the SMB package of P6SMB30CAHM3_A/H compare to SMA or SMC packages?
The SMB (DO-214AA) package of P6SMB30CAHM3_A/H measures 4.06 mm × 5.59 mm with a height of 2.20 mm-smaller than SMC (7.11 mm × 6.22 mm) but larger than SMA (4.57 mm × 2.92 mm). It offers a thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads, striking a balance between power handling (600 W) and board space efficiency. The P6SMB30CAHM3_A/H's SMB footprint supports automated placement while maintaining better thermal performance than SMA alternatives like SMAJ30CA.
What is the maximum reverse leakage current for P6SMB30CAHM3_A/H at its stand-off voltage?
The P6SMB30CAHM3_A/H specifies a maximum reverse leakage current (ID) of 1.0 μA at its rated stand-off voltage (VWM) of 30 V and ambient temperature of 25 °C. This ultra-low leakage ensures minimal loading on high-impedance sensor bias networks, precision voltage references, and battery-powered circuits. The P6SMB30CAHM3_A/H maintains this specification across its full operating temperature range, supporting stable performance in industrial and automotive environments.
P6SMB30CAHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB30CAHM3_A/H FAQ
1.How can I place an order for P6SMB30CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30CAHM3_A/H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P6SMB30CAHM3_A/H reliable?
The price and inventory of P6SMB30CAHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB30CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30CAHM3_A/H?
P6SMB30CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30CAHM3_A/H order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P6SMB30CAHM3_A/H?
For technical support, including P6SMB30CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30CAHM3_A/H requirements.
6.How does Aetrix verify that P6SMB30CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB30CAHM3_A/H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P6SMB30CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB30CAHM3_A/H?
All P6SMB30CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30CAHM3_A/H, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P6SMB30CAHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB30CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30CAHM3_A/H Tags
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